Chromatic Beam

You shoot a beam of energy at a target you can see within range. Choose Acid, Cold, Fire, Lightning, Poison, or Thunder for the type of beam you create, and then make a ranged spell attack against the target. On a hit, the target takes 3d8 damage of the chosen type.

Using a Higher-Level Spell Slot. The damage increases by 1d8 for each spell slot level above 3rd.